I have a small tinplate passenger car on the bottom is stamped a B with a sideways W after it and then Germany, the car number is 210. It measures 1-1/2" wide x 4" long and the roof is slightly longer and wider. The wheel spacing measures O gauge. I'm not familiar with this as my cup of tea is postwar Lionel, this was leftover in with my Dad's stuff.
Your help would be appreciated.
Thanks,
Nick